Printing-press-operating mechanism



Dec. 6, 1924. 1,519,367

' E. F. DUDLEY PRINTING PRESS OPERATING MECHANISM Filed March 25, 1922 I 2 heets-Sheet 1 -4 Q I: 1 F ,Jxrv-uqnmmm/xnjvummmvbv v. 4 h l D 16, .1924. E. F. DUDLEY PRINTING PRESS OPERATING MECHANISM Filed March 25, 1922 2 sheets sneet 2 Patented Dec. 16, 1924.

UNITEEE STATES PATEN't" QFFICE.

EDWARD F. DUDLEY, OF OAK PARK, ILLINOIS, ASSIGNOR TO ll ZIEHLE PRINTING PRESS 8r, IEANUFACTURING COMPANY, OF CHICAGQ. ILLINOIS, A CORPORATION OF ILLI- NOIS.

PRINTING-PRESS-OPERATING MECHANISIVL Application filed March 25, 1922. Serial No. 546,608.

To all w/zom 77 may] concern Be it known that I, EDWARD F. DUDLEY, a citizen of the United States, residing at Oak Park, in the county of Cook and State of Illinois, have invented certain new and useful In'iprm'ements in Printing-Press- Operating Mechanism, of which the following is a specification.

This invention relates to printing presses and more particularly to operating mechanism for printing presses in which the type bed and cylinder have relative vertical re ciprocatory movements.

One object of the invention is to provide a simple, durable and etiicient driving arrangement for the type bed and cylinder.

Another object is to provide a driving arrangement for the type bed and cylinder of a printing press in which all of the parts are accessible and conveniently arranged.

Another object is to provide a driving mechanism for the type bed and cylinder to meet all of the requirements for success ful commercial. operation in a vertical type of printing press.

These and other objects are accomplished by means of the arrangement disclosed on the accompanying sheets of drawings. in which Figure 1 is a framentary side elevation of a vertical type of printing press embodying my invention;

Figure 2 is a sectional view taken along the planes of the irregular line 22 of Figure 1; and

Figure 3 is a detail view of parts in side elevation as viewed from the line 3-3 of Figure 2.

The various novel features of the invention will be apparent from the following description and drawings, and will be particularly pointed out in the appended claims.

Referring to the figures of the drawings, it will be noted that my invention is dis closed in connection with a vertical type of printing press, including a main frame 10 upon which is mounted the way-frame in cluding two vertically arranged side frame members 11. Mounted on the way-frame members 11 and extending inwardly there from are two gears 12 which are rotatably mounted upon trunnions 13. Such gears 12 extend through openings 14 in the wayframe members 11, which openings 14 extend but a short distance vertically, it being understood that parts 15 form integral portions of the way-frame members 11 and act as ways for the type bed 16 which reciprocates vertically with respect thereto. Secured to the rear of the type bed 16, at the sides thereof, are two brackets 17 to which racks 18 are secured at opposite sides of the press. These racks 18 mesh with gears 12 for driving purposes to be referred to later. Pins 19 are carried in oppositely arranged portions of each of the brackets 17 and to these pins connecting rods 20 are connected. These connecting rods 20 in turn are pivotally connected to cranks 21 of a crank shaft 22 mounted in the main frame 10 of the press.

An impression cylinder 23 is rotatably mounted in the side arms 24: on acylinder frame 25, such arms 24 having lateral extensions 26 which are engaged by vertically extending gibs 27 secured to the way-frame members 11 and form ways for the cylinder frame whereby the latter may be reciprocated in a vertical direction in proper relationship with respect to the type bed 16. Secured to the lateral extensions 26 are racks 28 at each side of the press, which racks mesh with the gears 12.

From this arrangement it is apparent that when the press is in operation, the connecting rods 20 transmit a driving force from the crank shaft 22 to the brackets 17. Here the driving force is divided, part of it is transmitted directly to the type bed 16 for reciprocating the latter in a vertical direction. The remaining part of the driving force is transmitted from the brackets 17 through the racks 18, gears 12 and racks 28 for reciprocating the cylinder frame and its cylinder in a vertical direction and in an opposite sense to that of the type bed. Accordingly, the power for driving the cylinder and the strains incident thereto are not transmitted through the type bed 16.

Referring particularly to Figures 1 and 2, it will be seen that when the type bed 16 is drawn downwardly the cylinder frame 25 will be driven upwardly through the racks 18 and 28 and the gears 12.

All of the driving parts are convenient and accessible and provide an arrangement adapted to meet the various requirements for successful commercial use for the type of press shown.

It is my intention to cover all modifications of the invention falling within the spirit and scope of the following claims.

I claim:

1. In aprinting press, the combination of a type bed having a rack, a cylinder frame having a rack, a gear meshing with said racks, and driving means operatively connected to the rack of said type bed whereby the type bed and cylinder frame have a relative reciprocatory movement.

.2. In a printing press, the-combination of a type bed having a rack, a cylinder frame having a rack, gear means operatively connected with said racks whereby when the press is in operation there is a relative reciprocatory movement of said type bed and cylinder, and driving means for operating said parts.

3. in a printing press, the combination of a type bed, a cylinder, means opcratively connected therebetween whereby when the press-is in operation there is a reciprocatory movement- .of said type bed and cylinder, and

means whereby the power for reciprocating the cylinder and the strains incident thereto are transmitted to said cylinder without passing through said type bed. I

at. In a printing press, the combination of a type bed, acylinder frame, a bracket secured to said type bed, a rack secured to said i311 cket, a rack; secured to said cylinder frame, a gear meshing with both of said racks, and a driving connection to said bracket whereby the driving power is divided at said bracket, part going to the type bed and part going to the cylinder frame.

In a printing press, thecombination of a type bed, a cylinder frame, and means for reciprocating said type bed and frame in opposite direct-ions including a rack associated with said type bed and a rack associated with said cylinder frame and a gear interposed between. said racks and meshing with both of the latter.

6. In a printing press, the combination of a type bed, a cylinder fame, and means for reciprocating said type bed and frame in opposite directions including power transmission members connected with both the type bed and cylinder frame and a third power transmission member directly connected to said other power transmission members.

T. in a printing press, the combination ol EDWARD F. DUDLEY. 

